Which pair represents a set of isotopes?  Data sheet and Periodic Table

Which atom(s) in the acetic acid (CH3COOH, shown) is/are sp3 hybridized as identified with the bolded/larger atom(s)?             Data sheet and Periodic Table

Which molecule is polar?   Data sheet and Periodic Table

Which combination will result is a precipitate forming?  Data sheet and Periodic Table

Between HI and HF, which has the higher boiling point and why?  Data sheet and Periodic Table

What are the polarities of CH2Cl2 and CF2Cl2?                                      Data sheet and Periodic Table

On the phase diagram, point A denotes the _________ and with a decrease in pressure at a constant temperature, the substance will be a _________.          Data sheet and Periodic Table

Which atom(s) in the acetic acid (CH3COOH, shown) is/are sp3 hybridized as identified with the bolded/larger atom(s)?             Data sheet and Periodic Table

What is the standard enthalpy change for the reaction?  2NH3(g)N2H4(l) + H2(g)N2H4(l) + O2(g)N2(g) + 2H2O(g)               ΔH°1 = –543 kJ·mol–12H2(g) + O2(g)2H2O(g)                              ΔH°2 = –484 kJ·mol–1N2(g) + 3H2(g)2NH3(g)                               ΔH°3= –92 kJ·mol–1   Data sheet and Periodic Table

Which line corresponds to a process that requires an input of energy?           Data sheet and Periodic Table